This document provides an introduction to organizational behavior. It defines OB as the study of how individuals, groups, and structures impact behavior within organizations. OB draws from various behavioral sciences like psychology, social psychology, sociology, and anthropology. The document outlines an OB model that analyzes behavior at the individual, group, and organizational levels. It also discusses key dependent variables studied in OB like productivity, absenteeism, and turnover. Managers are advised to develop interpersonal skills and apply evidence-based management approaches to address challenges in areas like the economy, globalization, and diversity.